ICSE Question Bank

Objective questions

Question 1 of 10Biology

Select the correct answers to the questions from the given options. (Do not copy the questions, write the correct answer only.)

1(v)2026· Chemical Coordination in Plants· 1 mark

Assertion (A): Abscisic acid promotes stomatal closure during a drought. Reason (R): Abscisic acid helps the plant to conserve water during stress.

Choose an answer

(A) is true and (R) is false(A) is false and (R) is trueBoth (A) and (R) are true and (R) is the correct explanation of (A)Both (A) and (R) are true but (R) is not the correct explanation of (A)

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